Answer:
<h3> sum of the roots:From Vieta's formulas applied to quadratic polynomial we have:
if then
sum of roots:
product of the roots:
Some months have 30 days, some months have 31 days; how many have 28?
2 answers:
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ANSWER
EXPLANATION
The diagram represents the net of a rectangular prism.
The dimensions are,
and
The total surface area of a rectangular prism is given by:
We substitute the values to obtain,
EXPLANATION
The diagram represents the net of a rectangular prism.
The dimensions are,
and
The total surface area of a rectangular prism is given by:
We substitute the values to obtain,